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@MaG21
Forked from andelf/trc20.py
Created November 20, 2023 01:17
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Get TRC20 balance and Transfer TRC20 tokens
import requests
import base58
import base64
from pprint import pprint
ADDRESS = "T....your address"
PRIV_KEY = 'hex private key'
CONTRACT = "TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t" # USDT
CONTRACT = "T,,,,,,,,,,,,,,,,,,,,,,ia"
API_URL_BASE = 'https://api.trongrid.io/'
# API_URL_BASE = 'https://api.shasta.trongrid.io/'
# API_URL_BASE = 'https://api.nileex.io/'
# 70a08231: balanceOf(address)
METHOD_BALANCE_OF = 'balanceOf(address)'
# a9059cbb: transfer(address,uint256)
METHOD_TRANSFER = 'transfer(address,uint256)'
DEFAULT_FEE_LIMIT = 1_000_000 # 1 TRX
def address_to_parameter(addr):
return "0" * 24 + base58.b58decode_check(addr)[1:].hex()
def amount_to_parameter(amount):
return '%064x' % amount
def get_balance(address=ADDRESS):
url = API_URL_BASE + 'wallet/triggerconstantcontract'
payload = {
'owner_address': base58.b58decode_check(ADDRESS).hex(),
'contract_address': base58.b58decode_check(CONTRACT).hex(),
'function_selector': METHOD_BALANCE_OF,
'parameter': address_to_parameter(address),
}
resp = requests.post(url, json=payload)
data = resp.json()
if data['result'].get('result', None):
print(data['constant_result'])
val = data['constant_result'][0]
print('balance =', int(val, 16))
else:
print('error:', bytes.fromhex(data['result']['message']).decode())
def get_trc20_transaction(to, amount, memo=''):
url = API_URL_BASE + 'wallet/triggersmartcontract'
payload = {
'owner_address': base58.b58decode_check(ADDRESS).hex(),
'contract_address': base58.b58decode_check(CONTRACT).hex(),
'function_selector': METHOD_TRANSFER,
'parameter': address_to_parameter(to) + amount_to_parameter(amount),
"fee_limit": DEFAULT_FEE_LIMIT,
'extra_data': base64.b64encode(memo.encode()).decode(), # TODO: not supported yet
}
resp = requests.post(url, json=payload)
data = resp.json()
if data['result'].get('result', None):
transaction = data['transaction']
return transaction
else:
print('error:', bytes.fromhex(data['result']['message']).decode())
raise RuntimeError
def sign_transaction(transaction, private_key=PRIV_KEY):
url = API_URL_BASE + 'wallet/addtransactionsign'
payload = {'transaction': transaction, 'privateKey': private_key}
resp = requests.post(url, json=payload)
data = resp.json()
if 'Error' in data:
print('error:', data)
raise RuntimeError
return data
def broadcast_transaction(transaction):
url = API_URL_BASE + 'wallet/broadcasttransaction'
resp = requests.post(url, json=transaction)
data = resp.json()
print(data)
def transfer(to, amount, memo=''):
transaction = get_trc20_transaction(to, amount, memo)
pprint(transaction)
transaction = sign_transaction(transaction)
broadcast_transaction(transaction)
get_balance()
transfer('T..............q', 5_000, 'test from python')
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